Quantum Rotors: Magnetometers and Accelerometers

In a cold atom gas subject to a spin dependent 2D optical lattice potential with hexagonal symmetry trapped atoms undergo orbital motion around the minima of the optical lattice potential Such atoms are elementary quantum rotors QRs The theory of an atomic QR is developed Wave functions energies and degeneracies are determined for both bosonic and fermionic QRs as well as magnetic dipole transitions between ground and spin excited states QRs in optical lattices with precisely one atom per site can be used as a magnetometer or as an accelerometer such devices can have unprecedented accuracy Refreshments are served at 15:15